Hydro-extractor



J. L. HARING ET AL HYDRO EXTRACTOR Filed May 13. 1925 amok L. ana.

Dec. 7, 1926.

WITNESS ATTOR/VEK PetentedDec.

' QTAGOBL. HABING, or lATERSONfAND HARRY HFSTEPHENS, or'GLENRod NEW JERSEY. 7

' V {workmen from said element whenin'm'otion.

It is applied herein to a centrifugal machine:

' in which the rotary element isa 'driven'i'element and carries the basket of the machine, T

such basket being arranged to revolve in a casing and said element.projectingupwardly from thecasingland the cover or guard for the projecting portion of saidelementbeing 'movable' on the casing; this of; course is merely illustrative of the invention which 'rna'y be applied to other than: centrifugal machines and the like. The underlying object of the inventionisto improve ma.-

7 chines of this class by making it impossible Ito move the cover or guard 'froin thesafelj to the unsafe or exposing pos tion until therotary element'is' either at rest'or. rotating 7 at a predetermined safely slow-speed with f of, a centrifugal machine; embodying the Fig. 12 is a fragmentary plan in section hereinafter. I In the drawings, V- v I a 'Fig. 1 is side elevation,partly 1n section,

the power out 01f. Other obje'cts' w'ill appear invention r Figs. 3 and '4 are sections on lines' 8-.3

n y g- '1 Fig. 5 is a side'elevation, partly in section on line 5-5, Fig. 6,; showing mechanism i mechanism; f

including one ofthe coverlocksland its con trollingmeans; I, I

F1g. 6 is a plan,,;partly in section, of sa1d Fig. 7 is a front elevation of the housing section a" certain tongue. appearing therein;

, 7 Figs 8 and-9 show details of said inecha ,Fig.,10 isafdiagram of the electricalconnections'; and r I Figgll is a sectional detail of a part of the-base lportion ofthe machine. i

".1 is the circular casing vor support of a centrifugal =nlachine and. 2" is I} the basket suitably jOurnaledtherein on a Vertical axis, Q the axial portion 2'--of which protrudes upwardlyfrom the'casing, and. has afiirzed to its "upper end the brakefdrum 3 by which, through a clutchor; other "suitable c'onnection, the 'basket mayfbe rotated from; the p nxnno-nx'rnnoror t. f

a lieation fileafm 13,1935. ser al No. 29,'9 F

armature shaft 4: of: niotorwhose fixed casing 5]in the present case is supported by an upright 1" of the casing.

7 In orderto' stop the rotation of thebas ket includingv rotary structure ia br'aki'ng means is proyided as follows: one end of a brake-band 6: surrounding the brake-drum f is secured to'a bracket 7 "on the'upright' lf and its'other end isattached to a "link 8 I extending through a slot 91in :said upright and attached to the'arm l Of QffiwtQgglG- lever 10 pivoted in'the upright :and whose.

"other arm 10"" is its handle. lVhen the 1 toggle-lever is g1noved" on its fulcrum from V v oneto the other of' the dotted-line and fullline positions ofFig;v 2 thetogglel action results from the. necessity f tensionin'g the brake-band in o-rder'l'to shift the lever past the dead-center position, In the dotted line position the link is'held bearing against one endof wthe'slot, with thebrake set.

, The 'cover'or guard forthe protruding part of the rotaryfbasket-including struc- I ture is'a shell 11 in the presentinstanceiof visor-like formyor substantially U-shaped in plan, being in its best form shaped su b-' [stantially like a truncated cone having j a portion onone side of its axis removed-so thatiit is open at the truncated end. and also at one sidefWhen in closed or guarding position (dotted lines, Fig. a it rests with itsfedg'e' of greaterioirc nnference onlthe cas ing and with the'edgeat the mentioned side fthereof abuttingfagainst'the'frontvertical" face of the upright lf, the motor then protruding above thelsh'ell but all the rest of the mentioned' basket-including structure a being housed within It has atQits'rear appearing: in Figs. 5 and Gand showing in;

upper portion a rearwardly projectingarm "12 carrying at its gend -a counterbalance Weight 13 and fulcrulnedbetween the weight and shell in brackets 14" on uprightal.

Wllhe'n'the cover is swung up on its fulcrum stop; in this (the open) position the cover the Weight encounters the extension-l as a 4 trues classln th'efirst place, when the "'7 guard or cover "is raisedisince as will be apparent jthe uprightg lff arrangedjas whole offset with respect to a vertical plane flanking the upwardly projecting portion of the rotary structure, clear access to the basket is possible for loading and unloading except for that limited part of its circumference (at the back) where the upright is present; moreover, in its raised position the guard is entirely out of the way, projecting at nopoint laterally of the machine. When the guard or cover is down the rotary struc ture is completely housed, insuring entire safety and protection of the contents ofthe basket. Again, it requires very little effort to move the cover up or down.

There are two pivoted catches for the cover which when the cover is in closing or guarding pos tion lock 1t 1n that pos1t1on and require to beindividually manipulated in order to release it. tuated to. release the coverby the described means for checking the rotation of the basket-including structure; the other is m'anual ly' operable subject to the control of the rotating structure itself.

The first-mentioned catch 15, is pivoted between its ends to the upright 1 (which is hollow, Figr 2) within the same and has a.

hook-end protruding therefrom and formed with a cam-surface 15 at said end so that when the cover is closed said surface'lfi will ride over astud 16 on the cover and the catch finally come to rest in locking engage- V ment with said stud (Fig. 4) this end being normally depressed bya spring 17. The

other end has a cam-surface .15 bearing upwardly against the link 8. 'lVhen the brake is released (full-line position of parts 6 8-10,Fig. 2) the catch is free to lock the cover, but when the brake. is tightened to check the rotation of thebasket-including structure the link, by wiping over surface 15", shifts the catch to release the cover.

As for the other catch? 1 oted at 19 between its ends in a housing 20 I arranged on the casing, this housing'having a hole 21 to receive, when the cover 1s closed, 1

tongue 22 projecting from the cover, the

' as follows.

tongue and the relatively forward end of the catch being adapted to overla at that time and having their end portions formed withcam-surfaces 22 and 18, respectively, whichcoact to depress the catch on contact of thetongue therewith, and with hooks 22" and 18" which thereupon coact to interlock them and hence lock down the cover; When the cover is thus locked down its release is controlled by thebasket-including structure axial portion 23 rotating therewith (Fig. 1)

j which through suitable gearing 24 drives a shaft 25 'j'ournaled at its ends in the casings 26 27. and this shaft drives through gearing 28 (Fig. 11) a verticalshaft 29 journaled in casing 27 and the housing 20. The upper end ofthis shaft (Fig. 8.) has fi'Xed thereon One of these is ac This structurehas a depending a cylindrical head 29 substantially enlarging said end of the shaft andon which is,

spool 30 whose inwardly projecting stud 31 engages in a screw or cam-slot 32 formed in the head 29 of the shaft. The relatively rearward end of catch'18, pressed downmovable vertically and revolubly a catchactuator or controller here in the form of a wardly by spring 33, overlies and is adapted to be elevated by the lower flange of the actuator when the latter iselevat'ed. The actuator is Tnormally held depressed 'to the limit afforded by slot 32 by its own weight, and'when it is turned in the proper direc arcuate slot 20 in the casin and a lower or grip arm 38, which is shod with yielding 'materi'al ,38 to bear against the periphery of the actuator 30. One end of the spring 36,

abuts the casing and the other the arm 38 of lever 38, the spring thus acting to turn the arm 35 andlever 38 each anti-clockwise on its fulcrum. If lever 38 were turned of arm 35) its yielding shoe 38 would move in against and thus obtain a grip, on the barrel of the actuator 30. When therefore the operator graspsthe handle arm 38 of lever 38 and by a quick motion shifts it clockwise toward the remote end of the slot 20" the result is first to move lever 38 on its fulcrum This, 18,.is pivarm 35, thus .to obtain a grip'on theactuator.

and then shift said lever around the stud 34. This results in turning the actuator if clockwise on its fulcrum (or independently the shaft 29 is stationary or rotating'at a sufficiently slow speed (it rotates clockwise in Fig. 6) so that the spool will rise on the shaft due as explained to the screw-conned 'tion and consequently shift the catch 18 to releasing position. 7

The energy is admltted to and cut off from the motor by twobuttons 39 and 40 arranged:

in the casing 20 as shown inFigs. 6 and 7 these respectivelybeing opposite and spaced from and adaptedto press inwardly the movable circuit controlling parts 41' and 41" of a circuit controller or switch. 41 of known types The starting button 39 should be rendered inoperative except when the cover is closed. Henceon the block 42. is fulcrumed to move into and. out of movement opposing relation to the starting' button 39 a lever 43 which is normally. held by spring 44 (Fig. 7 in such position and 1,610,133 g is adapted to be shifted out of said posiby the tongue 22 when the cover is idown.

so as-to convey theoil upward for lubricat-f ing the shaft. The elevated oil is conveyed through a port 47 against the abutment 29 and through a groove 48 around the shaft and by which it is c onveyed'to a vertical return passage 49 returningto the oil well.

' 0pemti0n.-To start the machine the cover must be closed,'freeingthe starting button, and the brake .must be released. The machine is then started by pressing said but ton. cover it isnecessary, after the stopping button is pressed, to perform two separate operations, to wit, to apply the brake, which is necessary in order to. release the cover where it is held by the catch 15, and then to spin the actuator'3O relatively to shaft 29 in order to, release, as explained, the other catch 18+Whi0h may be done with'one hand, using the other to lift the cover by grasping its handle 11', Fig. 1. The cover when closed is always held by catch 15- unless the brake iss'et. VVithoutthisiit; would be possible to close the cover, which would be caught by catch 18, then as an afterthought release the catch by spinning the? actuator before I V the speed of shaft 29 picked up, and then open the cover, leaving the machine running. A switch 50 may be placed in the starting circuit which is urged by spring 50 (Fig.

10) to break said circuit but-is caused'by' lever 10 to close it-when the brake is: re-

leased. Thus the brake must bereleased beforei the motor can be energized.

In Fig. 10 51 isthe'niain circuit containing the motor, withiits energy source at 51, and 52 isits pivoted switch normally'held open by the spring shown and having a solenoid-53 to actuate it. 7 A lead 54 extends from one side of circuit 51 back to the other side thereof-(but atithe same sideof'the break in the latter) and contains the sole noidand the contacts 41 and 41", respectively held normally open and closed by springs as shown.

If '41 were-closed by the starting button 39 the solenoid will be energized and switch 52 closed. I To main tain the solenoid 'energized and switch 52 may have a depending ex} To: stop the machine and open the v the switch'50 and also a switch. 55 linked to move with switch 52 and adapted to contact with that part of lead 54 which is between the solenoid and switch 4l. Thus when 41 V is closed the shuntis closed through 55 and the solenoid will remainenergized until the circuit is broken at 41.

It ispnew in this art toform the cover or;

guard substantially as shown and described and support it for pivotal movement at its" 7 This has the advanupper rear portion. v tage that it isquite completely out of the way when raised, particularly for loading and unloading the machine.

l-laving'thus fully described our invention what we claim and desire ters Patent is:

to secure byLet- V 1.' In acentrifugal machine, the combina 1 tion of a casingopen at the top and having an upright thereon, a rotary structure jour- V mailed in and projecting above and having a in basket in the casing, the upright being arranged substantially as a whole offset with respect to a verticalplane fianking'the projecting portion of said structure, and ;a hollow guard formed substantially U-shaped inlan and restin on the casin with its ex- 'tremities reaching substantially to saidupright, said guard thereby coacting with the upright to surround the projecting portion of said structure but being pivoted upright on a horizontal axis near said plane and also near the top of the guard and being thereby 'pivotally movable upwardly to ailord clear access tothe casing.

2. In a centrifugal machine, the'combination of a casing having an upright thereon,

and a hollow guardopen at the bottom and to the upright on a horizontal axis near the :a rotary structure jo-urnaled in andpro'ject- -ing above and havinga basket in thecasing,

resting onthe casing and housing the projecting portion of said structure and pivoted, 1.00

top of the guard, said guard also havinga counterbalance arm extending therefrom past the upright and adapted to abut the 7 same when the guard is moved upward on its pivot. Y r 1 In testimony'whereof: we afiix our signatures. I V

" JACOB L. HARING.

' HARRY'H. STEPHENS.

ice 

